Answered: What is the primary component of a…

Engineering

Civil Engineering

What is the primary component of a bituminous pavement? A) Cement B) Lime C) Bitumen D) Gypsum

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

,,
3) The design of a concrete mix requires 1173 kg/m3 of gravel in dry condition, 582 kg/m3 of sand in dry condition, and 157 kg/m3 of free water required. The gravel available at job site has a moisture content of 0.8 % and absorption of 1.5 %, and the available sand has a moisture content of 1.1 % and absorption of 1.3 %. Determine: - the masses of gravel, sand and water per cubic meter that should be used at job site and the theoretical unit weight of the mix. - Assume that the same volume of dry coarse aggregate was replaced by dry lightweight aggregate of low bulk specific gravity (0.6 g/cm3) and M=5%, A=5%. What would be the new theoretical unit weight ?
The raw materials used in Portland Cement production are: A) Calcium/Coal/Alumina/Silica B) Alumina/Sandstone/Iron/Coal C) Calcium/Iron/Sandstone/Silica D) Alumina/Silica/Iron/Calcium
1. Following data are given for designing a Portland cement concrete mix for a nonstructural sidewalk slab: • Design strength f´c= 26 MPa• Standard deviation of f´c obtained from 25 tests=1.4 MPa• Freezing and thawing and exposed to chlorides• Use air entrained concrete• Slab thickness= 300 mm• Fineness modulus of fine aggregate=2.7• Maximum aggregate size=50 mm and nominal maximum aggregate size=37.5mm• Bulk oven-dry specific gravity of coarse aggregate=2.6• Oven-dry rodded density of coarse aggregate=2002 kg/m3• Type I cement, relative density=3.1 Find the following:a) Required compressive strength b) w/c ratio c) Coarse aggregate amount (kg/m3) d) If the w/c ratio is 10% reduced, will the quantity of coarse aggregate increase, decrease or remain the same? Explain your answer.
Concrete is required for a building foundation that is placed on a soil with high chloride content. The design calls for a minimum rebar spacing of 100 mm and a concrete cover of 75 mm. Which one of the following sizes is considered an acceptable nominal maximum size for aggregates? O A) 43 mm O B) 39 mm O9 28 mm O D) 49 mm A concrete pavement in Alberta will be exposed to freeze-thaw and de-icing salts during its service life. Which of the following exposure classes best describes the environmental conditions that the concrete will be exposed to? OA F-2 O B) A-2 O D) S-2 Strength of the normal weight concrete depends mainly on: OA) Strength of the aggregate O B) Mixing time OC) Purity of the mixing water O D) Water to cement ratio A fine broom finish is done only for aesthetic purposes. OA) True O B) False O
What is the effect of water–cement ratio on the permeability of hardened concrete? How does permeability affect the durability of the concrete structure?Using Figure 7.33, what is the approximate percent increase in the coefficientof permeability if the water–cement ratio increases from 0.5 to 0.6? Using thesame figure, what is the approximate percent increase in the coefficient ofpermeability if the water–cement ratio increases from 0.5 to 0.7?
what are the effects of aggregates in the performance of concrete?
9 Why should alkali content of cement be limited when active aggregate is used in the construction? please quickly
How can we improve Moisture Susceptibility of asphalt?
The following figure shows concrete pavement with the layer thickness and elastic modulus as indicated. Assume modulus of rupture of 650 psi, load transfer coefficient of 3.2, serviceability loss from 4.5 to 2.5, and drainage coefficient of 0.9. The bedrock depth and loss of support is not considered for the subgrade. Use the design equation or monograph with 50% reliability to solve the following: 1) Determine the number of ESAL that the pavement can carry before failure. 2) If the daily traffic has 1080 single axles (20-kip), 400 single axles (24-kip), and 680 tandem axles (40-kip), and the annul traffic is the same over the design period, how many years would the concrete pavement last before failure? 8-inch Portland Cement Concrete Ec=4×106 psi 8-inch Granular Subbase Ec=30,000 psi Subgrade Mr = 5000 psi
3. a) What is meant by dowel bar? Why it is used in the rigid pavement? b) Design the Dowel Bars for the following parameters: i) Design wheel load = 5100 kg ii) Design load transfer 40% iii) Slab thickness 30 cm iv) Joint width = 2.0 cm v) Modulus of dowel support = 42000 kg/em3 vi) Modulus of elasticity of dowel bar = 2x106 kg/cm2 vii) Modulus of subgrade reaction = 8 %3D viii) Grade of concrete = M 50
Which of the following is generally not affected by water intrusion in pavement? a. Pore pressure buildup due to traffic b. Damage due to freeze-thaw cycles c. Transverse cracking d. Heaving in problematic subgrades e. Pumping of fines